Luyten 820-19

Catalog numbers:
Gliese (Gl) 326, Luyten (L) 820-19
Arity: binary
Right Ascension and Declination: 8h51m42s, -12°55'36" (epoch 1950.0)
Distance from Sol: 47 light-years (15 parsecs)
Standard error in distance: 12.5954%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -32, 34, -11
Galactic (X,Y,Z) coordinates in ly: -22, -39, 16
Proper motion: 0.622 arcsec/yr (148.2° from north)
Source for proper motion: Gliese

What do all these fields mean?

Data for A and B's orbit around one other:
Combined spectrum: M6 V-VI
Combined absolute visual magnitude: +11.08
Combined visual luminosity: 0.003 x Sol
Observed Separation: 29 A.U.s
As seen from A:
B would appear as magnitude -12.27
As seen from B:
A would appear as magnitude -12.55

Component A:
Catalog numbers:
Luyten Half-Second (LHS) 2069, Luyten Palomar (LP) 726-18
Apparent visual magnitude: +12.52
Absolute visual magnitude: +11.70
Visual luminosity: 0.002 x Sol
Comfort Zone (visual): 0.04 A.U.s

Component B:
Catalog numbers:
Luyten Half-Second (LHS) 2070, Luyten Palomar (LP) 726-19
Apparent visual magnitude: +12.80
Absolute visual magnitude: +11.98
Visual luminosity: 0.001 x Sol
Comfort Zone (visual): 0.04 A.U.s

Data for this star system were most recently updated on 4-April-2001.